Apparatus for manufacturing ice.



4 A. ci-msnor. APPARATUS FOR MANUFACTURING ICE. APPLIGITIOR FILED JULY 29, 1907.

920,248, Patented May4, 1909.

Fig. 1.

2 SHEETS-SHEET 1.

10 I WITNESSES: 1 INVENTOR.

.6. W1 A lbert GBish'qo,

y z Hi4 ghv A. c. BISHOP, APPARATUS FOR MANUFAUTUEING 10B.

APPLICATION FILED JULY 29. 1907.

' Patented May 4, 1909.

2 SHEETS-SHEET 2- [NKENTOR Blshop AT] ORNE Vi bert Fig.

wmzzamazaaamm WITNESSES.

ALBERT O. BISHOP, OF DETROIT, MICHIGAN.

APPARATUS iron MANUFACTURING ICE.

Specification of Letters Patent.

Patented May 4, 1909.

Application filed July 29, 1907. Serial No. 386,100.

To all whom it may concern:

Beit known that I, ALBERT O. Brsnor, a citizen of the United States, residin at Detroit, in-the county of Wayne and tate of Michi an, have invented certain new and usefu- Improvements in Apparatus for Manufacturing Ice, and do declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and'use the same. y

M invention relates to means for artificia y producing blocks or cakes of ice of suitable commercial size, all substantially as shown and described and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view of one of my new and improved water tanks in which the ice is frozen, and Fig. 2 is an elevation partially in section of said tank. Fig. 8 is a horizontal sectional plan of one of the tanks, the same being roken out on cross lines both ways, and Fig.

' 4 is a sectional elevation of the tank broken out and-at right angles to Fig '2 and showing same as when'in freezing condition. Fig. 5 shows a section of a removable steam pipe, as hereinafter described, and Fig, 6 is a perspective view of a block of ice made in my ap aratus.

he present ap aratus is difierentiated from other and'we known means =for.manufrozenthe mold bodily lifted out of the freezing solution andtheice removed, as,be- Z fore. All these means involve more or less expensive distilling apparatus .and the :handling of a great manymolds .both for removing theice and for refilling, all 'ofwhich is hand work and hence expensive, as well as other ex en'sive requirements, which I avoid. ow, I have developed means for makin perfectly clear and clean ice from undisti ed water, or from water as itis obtained from asuitable source of supply, as arunning stream, lake, Iwellor reservoir, and what I may term natural water in contradistinction to water that "has beensubjected to preparatory processes. Furthermore, as a part of mymanufacture, I keep the water in circulationor movement while the freezing progresses and .at the same time subject 1t .to aeration by forcing air.

into the 'same under pressure and which, with the movement of the water itself from the lower to the higher levels, where it overflows, carries away Organic and other.

impurities and promotes clarification of the water to .be frozen, all as fully set forth herein. In this way I ,also dispense entirely with the'removable molds .or .cans'heretofore employed in manufacturing block ice, insofar as I .am acquainted with the art.

' To these ends andin carrying out my invention, the first-unit in my apparatus is the tank or box A, and which has a capacity say of -one hundred and ten sub-divisions or chambers, say 11x12 inches .across and an elevation corresponding substantially to the height of the b oekof ice to :be made, plus mands of trade may require, it rbeing'borne in mind that about 36 hours are required for freezing a given tank. Ordinarily, aseries of four tanks can be worked together econorn 'certain spaces above and below the block for ically, and each tank say of 22 tons ca acity.

Said tanks are equipped, first, .wit permanently fixed freezing c ambers havin walls 2 by whichthey are ormed, and saichambers are .wide open at both ends to the interior of the tank. In thisinstance' they are supported beneath on suitable angle irons orbars 3, fixed a-few inches above the bottom of :the tank, so as to leave a free .space.'be

neath thesaid chambers for the circulation @water, and suitable cross bars or frame pfiecesi4 .aboveserve to stay said chamber walls Zinfixed relations. These bars come beneath the top edge of the tank as seen in Fig. 4,,which leaves a clear s ace also abqve said chambers for -.the over ow of cast -.;off

water'through pi e 5. The eliminated impurities are carrie off in this way. Thesaid chamber Walls 2 co stitute in each case a tube, referably rectangular in cross section and with smooth interior, and said walls are separated or spaced apart sufficiently about the four sides of each chamberto introduce the freezing coils orpipes 6 and 8 respecso as to (promote umformlty tively between them. 'These are arranged relativel as shown, so that the freezing agent wi reach each chamber all around its full working depth, and to this end I provide 5 tank A with a suitable header H, from which circulation of the ammonia or other as is forced and travels through said circu atin pipes 6 and 8, having pipefi leading from sai eader andtraversin t e spaces between the broad sides of said eezing chambersfrom top to bottom relatively asshown in-Figs. 3 and 4, and pipes 8 traversing the narrow sides of said chambers as also seen in Figs. 3'

and 4, and likewise'in Fig. 2. A suitable suction header or headers 9 shown in cross section Figs. 1 and 3 usually'connect the outlet terminals of said ipes 6 and 8, Fig. 1, and said terminals Han 9 arepreferably located in diagonal corners of the tank. The ar- 20 rangements of ipes and headers as shown provides for um orm'distribution of the freezmg agent throughout thetank and conse-,

(1361113 uniform freezing of the water within a the chambers. The said tank ,A'isdesigned to be kept. filled to overflow through outlet 5 during the freezing process, and to" this end I provide a water supply pipe P,

which has one or more branch pipes 10 leading thei'efrom into said. tank, and several such branch pipes are preferably employed of temperature and con tions in the tank.

The volume of water sup lied over and above what is necessary to ll the tank, is measurably dependent on its condition as to purity, and which circulation or How of the water will hel to promote, and such volume or flow is easi y'regulated by the attendant lily cock or otherwise in the supply ipe.

either do I find that such circulation o water materially hinders freezing, because the freezing action naturally begins on the walls of the chambers next to the ipes and continues inward until a solid blbc'k is formed substantially to the full depth of said chamhers, andthe movin or rising water comes between the four wa ls of the forming block and continues to move until the interior also is frozen solid. This movement and the agitation and purification of the water meantime is materially promoted by the introduct1on of atmos here from beneath throu h air supply pipe which has a plurality 0 feed pipes 12,.that' enter the bottom of the'tank and distribute air more or less generally and uniformly in and'through thebody of'water' at the same time 4. 'This leaves a ortion' of. unfrozen water above and below t e blocks of. ice when finished. ,Of course, air is supplied to the tank under pressure and likewise in greater or less quantity as conditions of'the water may demand. Ultimately, however, by this dual process of flowing the water through the tank while freezing) and a itating the water y disc argin air there.- into, I am enabled to produce b ocks of ice of exce tional clearness and purity from water whichwould seem from appearances-to be wholly unfit for this purpose and would be unfit-but for its successful treatment inthis way.

To re ease the ice from chamber walls 2, I

switch off the refrigerated brine or other solu'tion from ipes 6 and 8 and flow sufficient hot gas or uid of some'kind through said pipes to detach the block of ice from said walls. Then in order to be able to reach said block from above and lift it out I flow steam or the likeinto pipe .G, which has tubular nipples 15 0 en theretoandextending into the tops of c ainbers 2, ml which form side ockets or recess in the locks of ice. This one said nipples are released and removed with "i e-G. Rubber. or'other flexible and detac a le steam connections 16 are made a with. said pipe. The'ice blocks can then be grasped .by ton s 'm the channels 17 Fig 6' and odily lifte out.

Suitable regulatin cocks or valves are em ployedin all the varl pus lines of pipe for air, water,- gas and stea and need not be further particularized. Fig. 4 shows a drain pipe 20 'for the tank, which tank can be emptied and further cleansed as often as may be needed. Sectional covers C are employed large enough in this instance to each cover several ice chambers. Having all the details of construction arranged substantially as shown the water is turned on and the tan filled. Then the controlling cock for the.

water is set according to the flow deemed to be necessary for cleansing purposes,- therefrigerating gases or fluids are turned on and also the air, and with the tank covered the freezing begins and continues until solid blocks of ice are produced in the various chambers. Under normal or usual conditions these blocks should form equally and be frozen solid at about the same time,

though local conditions here or there may make some differences. However, an entire tank is handled as .a un1t,and none of the blocks are removed until all are ready.

The freezing or expansion pipes 6 and: 8'

e bottom of the tank are supported from t on 1 osts .33, or their equivalent, between wal s 2 of the refrigerating chambers or spaces, and tank A is preferably of sheet steel of suitable weight. 7 Insulation may be provided about theext'erior of the tank if preferred. The covers C run in transverse or; longitudinal series, and each separate cover is separately remova ble.

pipe toavoid freezing said pipe and possibly ursting it, when, for any reason, there is no fiow' of air and the pipe becomes filled with dead water.

The freezing line of the ibe is plainly indi cated in Fig; 4, and it will be ,observedthat prevent possible freezing of the air pipe. will also be noticed as a feature 0 this -infreezing occurs to a limited depth below the lower coil and cannot extend farther than that. Then again, the inflow of fresh water into the bottom of the tank contributes :tiO

vention that a given arrangement of pipes "about an ice f0, ing chamber serves to freeze adjacent chambers, and that the operation is materially differentin this respect from the disposition of refrigerating pipes in such. I

an ordinary salt or other solution Where the solution is reached by the pi es, and freezing of the ice occurs'through tie solution and not through orfrom the pi es as such. In the-present, construction 0 my apparatus,

' the tank A is filled with water and the refrigcrating pipes are immersed in the water as The ice is formed in the freezing chambers between the end thereof as'clearly indicated at the left in Fig. 5 and within the portion of said chamber surrounded bythe freezing coils or pipes. Said chambers rest down u on the angle-bars or irons 3, and when the b ocks of ice frozen therein are liberated, they drop down uponthese angle-bars or immediately over them and are then at libert to be. drawn out from the top of the cham er. g

1. An ice making a aratus comprising a tank adapted to be lled with fresh water and provided with an inlet for water at its botto n and an overflow at its top, whereby the water-is causedto rise in the tank while freezing occurs, in combination withaseries of vertically dis osed freezing chambers ada ted to be bo ily immersed in the water in t eitankand open at both ends, and refrigerating coils arranged one u on the otherat all the sides of said cham ers between their ends. i

. 2. In ice manufacture, a tank adaptedto be filled exclusively with moving fresh water, in combination with ice forming chambers open at both ends and adapted to be im mersed in the water in said tank, said chambers being permanently built into the tank at both ends, and pi es carrying the refrigerat ing agent arrange one immediately over the other about'the four sides of said chambers between'their ends to freeze the water pipes arranged to cover the sides of said chambers uniformly between their ends and supply and suction headers respectively for sai pipes.

4. An ice making a aratus comprisin a tankadapted to be g ed exclusively with fresh water and having inlet and outlet openings to maintain a flow of fresh water through the same, a series .of rectangular refrigerating chambers permanently built into said tank above the bottom thereof and open across their bottom and top to the water in said tank and exposed thereto about their sides, and refrigeratin pipes in. series about the four sides of said .0 ambers substantially from end to end, said tank having spacin pieces at its top between said chambers an above said pi es.

5. An ice reezing a paratus comprising atank adapted to be filled exclusively with fresh flowing water and refrigerating chambers built fixedly into the same at their ends and open 'to the water in the tank, freezing ipes extending entirely around said chamhersone immediately above the other next to the walls thereof, means to maintain a. flow of water up through said tank and said chambers and about said pipes during freezing, and means to maintain a discharge of air into said chambers, from beneath and thereby agitate the water as it rises to higher levels. a)

6. In an ice making ap aratus, a tank and refrigerating chambers t erein, in combination with a pipe having dependin nipples enterin the tops of said cham ers and adapted to form recesses in the block of ice to enable it to be removed.

7. A refrigerating tank and a series of vertically disposed freezing chambers therein, in' combination with means to release the ice in said chambers comprising a pipe adapted tocarry a heating agent and provided with nipples extending into the tops of said chambers next to the walls thereof.

- 8. A refrigerating tank for an ice forming apparatus and a series of ice forming chambers bodily submerged in the water in said tank and open at both ends, a frame in which said chambers are fastened attheir ends, and freezing pipes arranged immedi-,

ately about said chambers between the up- I ends of. said chambers adapted to vvsupport peer and the lower portions of said frame. the blocks of ice formed therein. l0

9. An apparatus for making ice compris- In testimony whereof I sign this specifica' ing a tank and a series of ice forming chamtion in the presence of two witnesses.

5 bers irrernovabl fixed in a vertical position f ALBERT C. BISHOP.

therein above t e bottom of the tank, said Witnesses: 1 v chambers open across both ends to the in- R. B. Mos-ER, terior of the tank, and ledges in the lower F. C. MUSSUN. 

